src/Module/ParseUrl.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Module;
  23
  24 use Friendica\App;
  25 use Friendica\BaseModule;
  26 use Friendica\Content\Text\BBCode;
  27 use Friendica\Core\Hook;
  28 use Friendica\Core\L10n;
  29 use Friendica\Core\Session\Capability\IHandleUserSessions;
  30 use Friendica\Core\System;
  31 use Friendica\Network\HTTPException\BadRequestException;
  32 use Friendica\Util;
  33 use Friendica\Util\Profiler;
  34 use Psr\Log\LoggerInterface;
  35
  36 class ParseUrl extends BaseModule
  37 {
  38         /** @var IHandleUserSessions */
  39         protected $userSession;
  40
  41         public function __construct(L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, IHandleUserSessions $userSession, $server, array $parameters = [])
  42         {
  43                 parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
  44
  45                 $this->userSession = $userSession;
  46         }
  47
  48         protected function rawContent(array $request = [])
  49         {
  50                 if (!$this->userSession->isAuthenticated()) {
  51                         throw new \Friendica\Network\HTTPException\ForbiddenException();
  52                 }
  53
  54                 $format = '';
  55                 $title = '';
  56                 $description = '';
  57                 $ret = ['success' => false, 'contentType' => ''];
  58
  59                 if (!empty($_GET['binurl']) && Util\Strings::isHex($_GET['binurl'])) {
  60                         $url = trim(hex2bin($_GET['binurl']));
  61                 } elseif (!empty($_GET['url'])) {
  62                         $url = trim($_GET['url']);
  63                         // fallback in case no url is valid
  64                 } else {
  65                         throw new BadRequestException('No url given');
  66                 }
  67
  68                 if (!empty($_GET['title'])) {
  69                         $title = strip_tags(trim($_GET['title']));
  70                 }
  71
  72                 if (!empty($_GET['description'])) {
  73                         $description = strip_tags(trim($_GET['description']));
  74                 }
  75
  76                 if (!empty($_GET['tags'])) {
  77                         $arr_tags = Util\ParseUrl::convertTagsToArray($_GET['tags']);
  78                         if (count($arr_tags)) {
  79                                 $str_tags = "\n" . implode(' ', $arr_tags) . "\n";
  80                         }
  81                 }
  82
  83                 if (isset($_GET['format']) && $_GET['format'] == 'json') {
  84                         $format = 'json';
  85                 }
  86
  87                 // Add url scheme if it is missing
  88                 $arrurl = parse_url($url);
  89                 if (empty($arrurl['scheme'])) {
  90                         if (!empty($arrurl['host'])) {
  91                                 $url = 'http:' . $url;
  92                         } else {
  93                                 $url = 'http://' . $url;
  94                         }
  95                 }
  96
  97                 $arr = ['url' => $url, 'format' => $format, 'text' => null];
  98
  99                 Hook::callAll('parse_link', $arr);
 100
 101                 if ($arr['text']) {
 102                         if ($format == 'json') {
 103                                 System::jsonExit($arr['text']);
 104                         } else {
 105                                 System::httpExit($arr['text']);
 106                         }
 107                 }
 108
 109                 if ($format == 'json') {
 110                         $siteinfo = Util\ParseUrl::getSiteinfoCached($url);
 111
 112                         if (in_array($siteinfo['type'], ['image', 'video', 'audio'])) {
 113                                 switch ($siteinfo['type']) {
 114                                         case 'video':
 115                                                 $content_type = 'video';
 116                                                 break;
 117                                         case 'audio':
 118                                                 $content_type = 'audio';
 119                                                 break;
 120                                         default:
 121                                                 $content_type = 'image';
 122                                                 break;
 123                                 }
 124
 125                                 $ret['contentType'] = $content_type;
 126                                 $ret['data'] = ['url' => $url];
 127                                 $ret['success'] = true;
 128                         } else {
 129                                 unset($siteinfo['keywords']);
 130
 131                                 $ret['data'] = $siteinfo;
 132                                 $ret['contentType'] = 'attachment';
 133                                 $ret['success'] = true;
 134                         }
 135
 136                         System::jsonExit($ret);
 137                 } else {
 138                         System::httpExit(BBCode::embedURL($url, empty($_GET['noAttachment']), $title, $description, $_GET['tags'] ?? ''));
 139                 }
 140         }
 141 }